Anthropometry of modern Egyptians / by J.I. Craig.
- Craig, James Ireland, 1868-
- Date:
- [1911]
Licence: In copyright
Credit: Anthropometry of modern Egyptians / by J.I. Craig. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![stature and chest measurement as the chief factors. The statistics here discussed sliow that, for natives of Alexandria at least, there is a positive correlation of 0'112 + 0'022 between stature and cephalic index (which might be expected to be independent of stature*) on 643 subjects f. If we may extend this result to the rest of Egypt proper, it follows of course that Professor Myers’ series, although not primarily selected by cephalic index, are still so selected to the extent implied in the above coefficient of correlation. The evaluation of the coi’relations for other parts of the country will form the subject of a later investigation. A further selection was made by rejection of the Copts from his statisticsj, and also by eliminating those subjects whose parents were natives of different mudirias (provinces), but this last procedure is probably not altogether objectionable, since it tends to assure homogeneity of the material. (6) The arrangement of the subjects of the present paper into classes according to place of origin has been made by birthplace without reference to the origin of the parents, on which no information is available, and it becomes necessary to consider to what extent migration may have affected the figures. The statistics resulting from the census of 1907 show that, while there is a large influx from the provinces into the towns, there is but little inter-migration between the provinces themselves. Thus out of a total native male population of 306,000 in Cairo, 10.'),000 (341 per thousand) were born outside the city, and of these 8,700 (28'6 per thousand) came from Girga, one of the most active centres of emigration ; but for Qaliubia, a province which lies just to the north of Cairo, the figures give 15,000 (75 per thousand) male immigrants out of a total native male population of 201,000, and of these only 760 (3‘8 per thousand) came from Girga. Railway statistics for Egypt show that the number of third-class passengers has increased very considerably in recent years, from which we may reasonably conclude that migration also has increased, so that the figures given above may be considered as an upper limit. In the provinces therefore, migration is so small that its effects (except possibly when integrated through long intervals) may be neglected. Where the influence is appreciable, as in the towns, it will tend to produce a recession towards the genei’al mean of the population. (7) Reduction of the Cephalic Index'^ to the Cranial Index. The primary object of this paper was to give data for the comparison of the modern Egyptian * [Stattire and cephalic index correlation = --OSi'O'i for Cambridge Undergraduates, = -'13 for Oxford Undergraduates (see Biometrika,Yo\. viii. p. 61), and the interracial correlation between stature and cephalic index was found by Tschepourkowsky from two different series to be - 'IS and - '22 respectively {llioiiietrika, Vol. iv. p. 288). It has usually been supposed that there is a small negative correlation between stature and cephalic index, due to the fact that the taller races are more dolicho- cephalic. EniToii.] t Since this was written the coeflicient of correlation for stature and cephalic index in Nubia has been found to bo - 0-237 ±0-0(55. J Since this was written the differences between Copts and Moslems in the present statistics have been found to be very small. § Throughout this paper “cephalic index” will be employed to refer to the measures on the head over the flesh, and “ cranial index” to refer to measures on the skull.](https://iiif.wellcomecollection.org/image/b22418854_0008.jp2/full/800%2C/0/default.jpg)
